Measurement of the cross sections for $e^{+}e^{-}\to p\bar{n}π^{-}$ at center of mass energies from 3.510 to 4.946 GeV

Using a data sample corresponding to an integrated luminosity of 43.8~fb$^{-1}$ collected with the \mbox{BESIII} detector at 44 center-of-mass energy points between 3.510 and 4.946~GeV, the Born cross sections for the process $e^+e^- \to p \bar{n} π^-$ and its charge-conjugated process are measured.